Laura, thank you for taking the time to model the warehouse boxes. I appreciate the enginuity. This could be used for games but as well as that, for businessmen to help showcase floorplans and build site images to their co-workers and employees. I highly respect this level of design.
Best
Paul.

Tom Jacobs has released a complex eroded stone substance on Gumroad. This graph is a nice way to dive into the world of advanced materials in Substance Designer, so check it out.

So, I just recently started to revisit a few graphs I did a few month ago and took another pass to improve it.

This one is based upon the Martian layered sand / mud stone rocks that are scattered everywhere at the Gale Crater.

The graph itself is not very difficult, for the layering I used the quantize node and then several distortion and warp nodes. All these where mixed together, sometimes with masks, too. For this one I was aiming towards rocks that looks like rocks in terms of hardness but rather have the look of hardened dried mud.